This. Stop the insanity. Disabling PowerShell is not going to make you secure. It's going to push attackers down a path where you have limited/zero visibility. Follow Lee's guidance below. Keep a powerful tool and get great visibility into how it's used.
Despite listing over 60 hashes of EXEs and DLLs in their Iran cyber briefings, threat intel organizations that recommend disabling PowerShell are hard to take seriously. That advice is simply not actionable. This is.